Windlass



' and 'annexed drawings constitute 'a full,r

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- OBDIN NICHOLS, OFA'LOWJLL, MASSACHUSETTS.

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speeifieaeion of neaes Patent No. ia-,a'izifaated January-9, Vv185'5.

fTofaZZ 'who/m t may concern Be 'it "known that I, 'OnDiN NICHOLS, ofLowell, county of Middlesex, and 'State of Massachusetts, have inventeda 'novel and useful 'Self-Tleeting'Win'dlass and Self-ActingChaini'Cabl'e Stopper Combined; and I vtruly 'declare that ythevfollowing description thorough, and 'exactdes'c'riptionfof the making'and v'of 'the 'manner of constructing `the same in 'generala'nd indetail `and the manner of using them for the purposes above mentioned.

Inreferri'ng to fthe'drawings :Figure 1, dey notes a side elevationlFi'g. 2, denotesia front elevation of the same "device The nature of my'invention consists of casting out and raising 'the anchor "or chaincable, and fleeting and stopping the said chain by means of a conicalgrooved cylinder, over which, is placed a pa`w`l or pawls, for thepurpose of stopping the chain cable by preventing itsslippin'gfaroundithe windlass. The said conical cylinder effectuallyconstituting the windlass for letting out and taking in the cable, andthe Apawl combined with the said cylinder foi1 stopping the cable. Andalso of the other parts of my devices, detailed and fully explained inthis specification and the drawings attached to it, and this device orinvention, will dispense with the labor of four men in raising anchors;by the chain passing directly from the hawse hole to the windlass andthereby supersede the dragging of the chain up an inclined plane andthen over the windlass roll or cylinder, as in other arrangements ofwindlass and Stoppers.

To enable competent workmen; thor-4 oughly skilled in the art of making,constructing and using windlasses and chain stoppers, to carry out myinvention I will describe the saine as follows: I construct a cylinderof wood and iron substantially as seen at B, Fig. 2, of the drawingwhich must be properly fitted to good substantial bearings as seen at H,Figs. 1, and 2, and they the said bearings, must be firmly secured tothe deck and timbers of vessels as seen at A, Figs. l, and 2. At one endof the cylinder is attached an iron ratchet gear, above and into whichplays an iron pawl or dog D, hanging freely in the stand E, as seen atFig. 2, for the purpose of stopping any turning of the before-mentionedcylinder or windlass as is generally used, I further construct andattaehfbyfmeanefef they stanefE, tothefquarter jdeck `or rvothersubstantial support, two p'awlslasfse'en 'atC, Figs. "l and 2, andi-'atFig. u 2, fand-funder AIthemu in the,'surfacev 'of `the cylinder, Iplac'etwoifronrinfgs'in which series of gradatons, which can =be'vari-ed a'c'cordn to @the weight of theanchrfand size elf tl e chain,which `are plainly 'shown at Fig. '2. Theis'ef'aire for 'the perfect andfree `v'vorkingof the l chain. vUnder `v the yfoy-1inde'r y13, place.two statienaey guiding 'arms 1, I', Fig. 2, 'and-*firmly 'them ter thedeck, vffo'r the purpose o'f 'ip'roperly guiding the chain Vas yit'passes "o'n, 'or dif fiol', tlie cylinder. The right one briiigs thechain partly '0H the ed'ge of theJ first grada#- tion of the cylinderand consequently, the rest ofthe chain coil follows a similar course onthe other gradations. And I also construct two movable adjustable arms,as seen at J J, Fig. 2,'held in their working positions by the stops 0,Fig. 2, the one at the right hand is for the purpose ofelfectuallyguiding the chain, into the groove L, continually, as it is drawn intothe vessel. And the left hand one effectually throws the chain out oftheJ groove N, as it passes around the cylinder so as not to ride orcome in contact with itself, when it passes out of the ships or vessels.These movable adjustable guides, should both be made of iron, and freelyslide between two strong ways, or tracks, as seen at Fig. 2.

I design to make two holes in the deck or other equivalent devices forthe purposes of keeping the guide J J, close to the surface of thecylinder, and guiding the chain into and out of these grooves asrequired, and at the same time to keep the left hand guide from thesurface of the cylinder. And when the chain is to be let out, the righthand adjustable guide is moved from the cylinder and thus held fast bythe stop o, and the left j hand adjustable guide is moved to the surfaceof the cylinder and held fast in that position by the other stop 0. Itmust be understood by this contrivance that the top part of the saidguides J, kee lthe chain in the proper position so as to e stopped by`the bows of the vessels.

the pawls, when it is let out or drawn in. It will be further understoodthat the chain winding several times around the cylinder can be stoppedmuch easier by the pawlM, than it could by the letting the pawl C, dropon to the said chain which would bring the wholel strain upon it and thecylinder. And my invention supersedes the necessity of strengthening thevessels at an outlay of from one to two hundred dollars which isnecessary in all other stoppers placed upon And having thus describedthe making and construction of them I will describe the operation asfollows:

The chain K, and all the other parts as shown in the drawing are in theposition as when the cha-in is being drawn in by the turning of thewindlass B and if the chain islt out from the vessel the right handYsliding guide must be removed from the surface of the cylinder and thepawl C, must be raised from the chain which immediately changes itspositions from the right end to the left end of the cylinder B, by therevolving of the saine, which is effected by the weight of the chain andanchor, by turning the said cylinder, and when thus vchanged to the leftend of the cylinder B, the left hand sliding guide J, ismoved up to thesurface of the cylinder, and secured in that position by the stop o.Thenthe chain can be let out its Whole length without its being possiblefor any part of the chain to come in contact with itself when passingout of the ships or vessel as set forth and also when the chain is beingdrawn in. All essentially as set forth and specified.

Having thus described my invention, what I claim as my originaldiscovery and desire to secure by Letters Patent is* i l. The cylinder'B made substantially, and operated essentially and for the purpose asset forth.

2. I claim the action and coperation of one or more pawls with thecylinder B, so arranged with this cylinder as to come in contact withand firmly hold the chain, when passing either way over the top of thiscylinder which constitutes, with the pawls C and M, both the windlassand stopper when constructed and operated essentially as set forth.

3. I claim the combination of the cylinder B, the pawls C and M, and theadjustable guides J, all or either two of them, for raising, stopping,and eeting chain cables, they being Vconstructed and operatedessentially and for the purposes set forth.

OLDIN NICHOLS, Witnesses S. S. PARKHURST, G. C. ABBOTT.

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